pciide_dma_finish
sc->sc_wdcdev.dma_finish = pciide_dma_finish;
extern int pciide_dma_finish(void *, int, int, int);
sc->sc_wdcdev.dma_finish = pciide_dma_finish;
sc->sc_wdcdev.dma_finish = pciide_dma_finish;
int pciide_dma_finish(void*, int, int, int);
error = pciide_dma_finish(v, channel, drive, force);
sc->sc_wdcdev.dma_finish = pciide_dma_finish;
sc->sc_wdcdev.dma_finish = pciide_dma_finish;
sc->sc_wdcdev.dma_finish = pciide_dma_finish;